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Interactive Variable Pathlength Device

  • US 20090027678A1
  • Filed: 04/10/2008
  • Published: 01/29/2009
  • Est. Priority Date: 04/13/2007
  • Status: Active Grant
First Claim
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1. A method of determining the concentration of a sample comprising:

  • (a) placing the sample in a vessel;

    (b) placing a probe within sample;

    (c) taking an absorbance reading;

    (d) moving the probe relative to the vessel by a predetermined increment taking an absorbance reading at a predetermined wavelength;

    (e) repeating step (d) one or more times;

    (f) generating a regression line from the absorbance values such that a slope of the regression line is obtained; and

    (g) determining the concentration of the sample by dividing the slope of the regression line by the extinction coefficient of the sample.

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